成熟的T细胞()
A.可表达CD3分子
B.有E受体
C.可接受PHA刺激
D.对抗原识别具MHC限制性
E.可针对异源抗原产生免疫应答
参考答案:A,B,C,D,E
Rio de Janeiro of Brazil ________ the bid to hold the 2016 Summer Olympic Games after beating
rivals Chicago, Tokyo and Madried.[ ]
A. won
B. hosted
C. solved
D. earned
包衣片剂分为________和________。